Download or read book Converting Western Oregon Red Alder Stands to Productive Conifer Forests written by and published by . This book was released on 1996 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes the methods commonly used to convert alder forests into conifer forests, as well as the advantages and disadvantages of various conversion systems.
Download or read book Converting Western Oregon Red Alder Stands to Productive Conifer Forests written by Michael C. Bondi and published by . This book was released on 1987 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Red Alder Harvesting Opportunities in Western Oregon written by Donald R. Gedney and published by . This book was released on 1990 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Red Alder written by Robert Leslie Deal and published by . This book was released on 2006 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: In March 23-25, 2005, an international symposium on red alder was held at the University of Washington Center for Urban Horticulture in Seattle, WA. The symposium was entitled S2Red alder: A State of KnowledgeS3 and brought together regional experts to critically examine the economic, ecological and social values of red alder. The primary goal of the symposium was to discuss new advances in the understanding of red alder biology and silviculture, changing market and nonmarket values, and the current regulatory climate for management of alder. This proceedings includes 14 papers based on oral presentations given at the symposium. These papers highlight some of the key findings from the history, ecology, biology, silviculture and economics sessions presented at the red alder symposium.
Download or read book Managing Red Alder written by David E. Hibbs and published by . This book was released on 1995 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Utilization and Management of Alder written by Pacific Northwest Forest and Range Experiment Station (Portland, Or.) and published by . This book was released on 1978 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book General Technical Report PNW GTR written by and published by . This book was released on 2006 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book USDA Forest Service General Technical Report PNW written by and published by . This book was released on 1978 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Managing Declining Red Alder Forests written by Amy T. Grotta and published by . This book was released on 2009 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Case history of an excellent white spruce cone and seed crop in interior Alaska written by and published by . This book was released on 1978 with total page 810 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Structure and Dynamics of Red Alder Communities in the Central Coast Range of Western Oregon written by Gary C. Carlton and published by . This book was released on 1988 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: Red alder (Alnus rubra Bong.) is a fast-growing pioneer species that colonizes disturbed forest sites west of the Cascade Mountains in the Pacific Northwest. Streambottoms, toe slopes, and mass movement of surface soils have historically provided the scarification and soil moisture necessary for successful regeneration of red alder. During the past century, however, extensive logging activity has greatly increased the availability of suitable conditions for alder establishment. The species has responded by expanding upslope throughout its range, displacing native conifers over large areas. As a relatively short-lived pioneer species, red alder would be expected, by conventional succession theory, to relinquish sites to longer-lived conifers such as Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco). However, studies conducted on sites dominated by red alder have found very little tree regeneration, suggesting that shrub species such as salmonberry (Rubus spectabilis Pursh) or vine maple (Acer circinatuin Pursh) may dominate sites after senescence of red alder. In this study, I examined both the understory and overstory components of 44 stands dominated by red alder in the Alsea River drainage of the Oregon Coast Range. Stands ranged in age from 7 to 87 years, the entire span of age classes found within the study area. Using a chronosequence approach, I inferred patterns of stand development and of change in the understory vegetation throughout the lifetime of the canopy dominants. I also evaluated a variety of tree and stand characteristics to relate stand structure and development to site factors and disturbance history. I then employed multivariate procedures to classify and ordinate understory vegetation, culminating in a description of five community-types. Four of the community-types were further differentiated into two variants associated with site factors. Disturbance was found to be important for successful colonization of sites by red alder, but the type of disturbance was not strongly related to structure or productivity of red alder stands. Logging and fire were the most common types of disturbance opening up sites for colonization by red alder. Evidence of logging and fire were observed on 30 and 19 plots, respectively. Landslides and unstable soils were evident on 16 sites. Site conditions such as physiographic position, elevation, and slope were more important determinants of alder stand structure than disturbance agents. Toe slopes had the highest site index values, but stands in midslope positions tended to attain greatest basal area and highest relative density index. Dominance and suppression were exhibited in diameter distribution patterns that expanded and became multimodal as the canopy matured. Self-thinning consistently removed the smallest individuals in young stands, but mortality in larger size classes gradually became important in older stands. Five understory communities are described in this thesis. Swordfern was dominant under most young stands of red alder, with occasional appearance of shrubs normally found on open, disturbed sites. Middle-aged alder stands supported one of three community-types: a mixture of swordfern and several shrub species, a community dominated strongly by swordfern and salmonberry, or a community characterized by dense thickets of salmonberry. Under many stands of senescing red alder, particularly those at high elevation, vine maple was the single dominant, but salmonberry was well represented in old stands at low elevation. Abundance of many non-woody species was found to fluctuate during the growing season. However, certain key species were identified that maintained relatively constant cover during the summer, and these species were used as the characteristic species for classification of communities. Very little tree regeneration was observed under intact red alder canopies or under the discontinuous canopies of senescing alder. In older stands, abundant understory vegetation apparently inhibited tree regeneration through competition for light and other resources and through the direct physical effects of litter deposits on the forest floor. On most sites, succession to communities dominated by salmonberry or vine maple appeared likely, although scattered saplings of western hemlock and western redcedar might eventually form a discontinuous canopy on some sites.
Download or read book Converting Brush and Hardwoods to Conifers on High Sites in Western Washington and Oregon written by Edward J. Dimock and published by . This book was released on 1976 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Volume and Taper Tables for Red Alder written by Robert O. Curtis and published by . This book was released on 1968 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Growth and Development of Red Alder Compared With Conifers in 30 Year Old Stands Classic Reprint written by Carl M. Berntsen and published by Forgotten Books. This book was released on 2018-03-17 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Growth and Development of Red Alder Compared With Conifers in 30-Year Old Stands Early interest in the management of red alder in the coastal forests of Oregon and Washington stimulated the start, in 1935, of a long-term stand-growth and development study. Two 1 - acre plots and two half-acre plots were established on abandoned cleared land where 8 to 12-year-old stands of red alder and conifers were developing. The conifer component consisted of a mixture of Douglas-fir, Sitka Spruce, and western hemlock. Selections and treatments brought about diversified composition of the experimental stands, . As follows: (1) pure alder, unthinned, (2) mixed alder-conifer, unthinned, (3) pure alder, thinned from an alder-conifer stand at age 11 years, and (4) p'ure conifer, thinned from an alder-conifer stand at age 8. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Utilization and Management of Alder written by Pacific Northwest Forest and Range Experiment Station (Portland, Or.) and published by . This book was released on 1978 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the Pacific Northwest and British Columbia, red alder often grows on forest lands following natural or man-caused disturbances. Frequently ignored as a pest or weed, many alder stands have developed to the point where important utilization and management questions are being asked. It is recognized that alder is a fast growing species, and that its rapid early growth may hinder growth of conifers associated with it. It is also recognized that alder has the capability of improving soil fertility, and that it may help reduce root rot problems of conifers. These attributes pose new questions as to whether or not alder should be deliberately managed and, if so, how it should be managed and utilized.
Download or read book Silviculture for Washington Family Forests written by Donald P. Hanley and published by . This book was released on 2005 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Red Alder written by Norman P. Worthington and published by . This book was released on 1962 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
